Bioanalysis of Pharmaceuticals: Sample Preparation, Separation Techniques and Mass Spectrometry is the first student textbook on the separation science and mass spectrometry of pharmaceuticals present in biological fluids with an educational presentation of the principles, concepts and applications.

Contributing Authors ix Preface xi 1. Introduction 1Stig Pedersen-Bjergaard 1.1 What Is Bioanalysis? 1 1.2 What Is the Purpose of Bioanalysis, and Where Is It Conducted? 2 1.3 Bioanalysis Is Challenging 6 1.4 The Different Sections of This Textbook 7 2. Physicochemical Properties of Drug Substances 9Steen Honoré Hansen and Leon Reubsaet 2.1 Bioanalysis in General 9 2.2 Protolytic Properties of Analytes 10 2.3 Partitioning of Substances 12 2.4 Stereochemistry 15 2.5 Peptides and Proteins 18 3. Biological Samples: Their Composition and Properties, and Their Collection and Storage 23Steen Honoré Hansen 3.1 Introduction 23 3.2 Blood, or Whole Blood 24 3.3 Plasma and Serum 26 3.4 Urine 26 3.5 Feces 27 3.6 Saliva 28 3.7 Cerebrospinal Fluid 28 3.8 Synovial Fluid 28 3.9 Hair and Nails 29 3.10 Tissue (Biopsies) 29 4. General Chromatographic Theory and Principles 31Steen Honoré Hansen 4.1 General Introduction 31 4.2 General Chromatographic Theory 32 4.3 Theory of Partition 33 4.4 Retention 34 4.5 Separation Efficiency 35 4.6 Resolution 36 4.7 Selectivity 37 4.8 The Separation Process 38 4.9 Chromatographic Principles 41 4.10 Reversed Phase Chromatography 45 4.11 Size Exclusion Chromatography (SEC) 54 4.12 Ion Exchange Chromatography 56 4.13 Chiral Separations 57 5. Quantitative and Qualitative Chromatographic Analysis 61Steen Honoré Hansen 5.1 Collection of Chromatographic Data 61 5.2 Quantitative Measurements 62 5.3 Calibration Methods 63 5.4 Validation 67 5.5 Qualitative Analysis 69 6. Sample Preparation 73Stig Pedersen-Bjergaard, Astrid Gjelstad, and Trine Grønhaug Halvorsen 6.1 Why Is Sample Preparation Required? 73 6.2 What Are the Main Strategies? 75 6.3 Protein Precipitation 75 6.4 Liquid–Liquid Extraction 80 6.5 Solid-Phase Extraction 94 6.6 Dilute and Shoot 110 6.7 What Are the Alternative Strategies? 113 7. High-Performance Liquid Chromatography (HPLC) and High-Performance Liquid Chromatography–Mass Spectrometry (LC-MS) 123Steen Honoré Hansen and Leon Reubsaet 7.1 Introduction 123 7.2 The Solvent Delivery System 125 7.3 Degassing and Filtering of Mobile Phases 127 7.4 Injection of Samples 128 7.5 Temperature Control 128 7.6 Mobile Phases 129 7.7 Stationary Phases and Columns 130 7.8 Detectors 135 7.9 Mass Spectrometric Detection 143 8. Gas Chromatography (GC) 173Stig Pedersen-Bjergaard 8.1 Basic Principles of GC 173 8.2 GC Instrumentation 174 8.3 Carrier Gas 177 8.4 Stationary Phases 178 8.5 Separation Selectivity in GC 180 8.6 Columns 182 8.7 Injection Systems 183 8.8 Detectors 185 8.9 Derivatization 187 8.10 Gas Chromatography–Mass Spectrometry (GC-MS) 188 9. Analysis of Small-Molecule Drugs in Biological Fluids 207Steen Honoré Hansen and Stig Pedersen-Bjergaard 9.1 Plasma and Serum Samples 207 9.2 Whole Blood Samples 234 9.3 Dried Blood Spots 241 9.4 Urine Samples 245 9.5 Saliva 253 References 259 10. Analysis of Peptide and Protein Drugs in Biological Fluids 261Leon Reubsaet and Trine Grønhaug Halvorsen References 282 11. Regulated Bioanalysis and Guidelines 283Martin Jørgensen and Morten A. Kall 11.1 Introduction 283 11.2 The Evolution of Regulated Bioanalysis 284 11.3 Bioanalytical Method Validation 286 11.4 Pre-study Validation 287 11.5 In-Study Validation 299 11.6 Documentation 300 11.7 Regulatory Requirements to Bioanalysis 300 11.8 Quality Systems in Regulated Bioanalysis 301 Index 305

Bioanalysis of Pharmaceuticals: Sample Preparation, Separation Techniques and Mass Spectrometry is the first student textbook on the separation science and mass spectrometry of pharmaceuticals present in biological fluids with an educational presentation of the principles, concepts and applications. It discusses the chemical structures and properties of low- and high-molecular drug substances; the different types of biological samples and fluids that are used; how to prepare the samples by extraction, and how to perform the appropriate analytical measurements by chromatographic and mass spectrometric methods. Bioanalysis of Pharmaceuticals: Sample Preparation, Separation Techniques and Mass Spectrometry: Is an introductory student textbook discussing the different principles and concepts clearly and comprehensively, with many relevant and educational examplesFocuses on substances that are administered as human drugs, including low-molecular drug substances, peptides, and proteinsPresents both the basic principles that are regularly taught in universities, along with the practical use of bioanalysis as carried out by researchers in the pharmaceutical industry and in hospital laboratoriesIs aimed at undergraduate students, scientists, technicians and researchers in industry working in the areas of pharmaceutical analyses, biopharmaceutical analyses, biological and life sciences The book includes multiple examples to illustrate the theory and application, with many practical aspects including calculations, thus helping the student to learn how to convert the data recorded by instruments into the real concentration of the drug substances within the biological sample.